#include<iostream>
using namespace std;

namespace Jill
{
	int hello(int x)
	{
		return 2 * x;
	}
}

namespace Hill
{
	int hello(int x)
	{
		return 3 * x;
	}
}

int main()
{
	cout << "Jill::hello(1) = " << Jill::hello(1) << endl;
	cout << "Hill::hello(1) = " << Hill::hello(1) << endl;
	return 0;
}
